(Eric VOLTO/500px/Getty Images) Biologists have long believed that having a large brain, relative to your body, might go hand ...

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"These krakens must have been a fearsome sight to behold." Scientists just classified an enormous octopus that likely ruled ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Plans are underway to open the world's first octopus farm in Spain—a ...

The rare sighting, captured on video off the coast of New Zealand and shared by scientists affiliated with the University of Auckland, shows a Maori octopus riding on top of a mako shark, which is the ...

Octopuses and their arms are a bit of a mystery. Not because scientists don’t know how they work; they’re boneless hydrostats, made up of... Untangling The Science of Octopus Arms Octopuses and their ...

Some scientists have already made the argument that octopuses might be aliens. While the claim seems a bit out of this world, new research into their brains continues to show just how alien the ...

Ectopic pregnancy is a life-threatening condition that happens when a fertilized egg implants itself outside of the uterus. If the egg is left to grow where it’s not supposed to, it can cause all ...

A recently proposed aquaculture octopus farm in the Canary Islands would raise 3,000 tonnes of an octopus a year, which means almost 275,000 individual octopuses will be killed annually. My research ...

Octopus mating behaviors can be quite deadly. Many species are cannibalistic, making the entire prospect of mating dangerous, and female octopuses often die after laying one clutch of eggs. Their ...